Extend the life of Guardair cartridge filters with Cloth Pre-Filter Bag. Cotton flannel bag installs over Standard, HEPA, and ULPA cartridge filters providing extra stage of filtration. Prevents wear and tear by capturing larger particles before they reach the cartridge filter. Washable and reusable. Replacement part for HEPA and ULPA filters. Upgrade part for Standard filter. Accessory.

  • Single-stitched, napped cotton flannel
  • Easy to install elastic neck
  • Rated @ 40/50 cfm
  • (1) Cloth Pre-Filter Bag For 30/55 Gallon Vacuums
Part NumberDimensions
(L" x W" x H")
Weight (lbs)
Part Number N635B Dimensions
(L" x W" x H")
13 x 10.5 x 10.5
Weight (lbs) 0.3

Lead time: 3-5 days